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All results from a given calculation for CH3CH2COOH (Propanoic Acid)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-266.916691
Energy at 298.15K-266.923780
HF Energy-266.916691
Nuclear repulsion energy176.754616
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3470 3349 9.96      
2 A' 3138 3028 18.56      
3 A' 3072 2964 16.00      
4 A' 3070 2962 7.70      
5 A' 1786 1723 164.16      
6 A' 1564 1509 9.80      
7 A' 1517 1464 23.59      
8 A' 1472 1420 13.67      
9 A' 1408 1359 35.13      
10 A' 1342 1294 1.98      
11 A' 1142 1102 124.57      
12 A' 1076 1039 165.72      
13 A' 1014 978 7.81      
14 A' 802 774 9.07      
15 A' 606 584 15.41      
16 A' 462 446 27.98      
17 A' 252 243 2.79      
18 A" 3140 3030 20.22      
19 A" 3097 2988 1.44      
20 A" 1563 1508 8.14      
21 A" 1318 1272 0.16      
22 A" 1147 1106 0.03      
23 A" 836 807 19.24      
24 A" 663 639 115.64      
25 A" 528 509 31.97      
26 A" 190 183 0.00      
27 A" 32 31 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19852.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 19155.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/3-21G
ABC
0.32740 0.12725 0.09486

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.560 0.000
C2 -0.609 -0.824 0.000
C3 0.481 -1.904 0.000
O4 -0.996 1.521 0.000
O5 1.192 0.841 0.000
H6 -1.260 -0.905 0.879
H7 -1.260 -0.905 -0.879
H8 0.036 -2.903 0.000
H9 1.119 -1.801 -0.883
H10 1.119 -1.801 0.883
H11 -0.560 2.419 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51232.51091.38361.22492.12302.12303.46332.75792.75791.9409
C21.51231.53472.37662.45311.09651.09652.17652.17242.17243.2430
C32.51091.53473.72992.83592.19122.19121.09381.09381.09384.4463
O41.38362.37663.72992.29102.59392.59394.54244.03554.03550.9978
O51.22492.45312.83592.29103.13623.13623.91882.78672.78672.3575
H62.12301.09652.19122.59393.13621.75742.53783.09252.54193.5086
H72.12301.09652.19122.59393.13621.75742.53782.54193.09253.5086
H83.46332.17651.09384.54243.91882.53782.53781.77961.77965.3547
H92.75792.17241.09384.03552.78673.09252.54191.77961.76544.6262
H102.75792.17241.09384.03552.78672.54193.09251.77961.76544.6262
H111.94093.24304.44630.99782.35753.50863.50865.35474.62624.6262

picture of Propanoic Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.980 C1 C2 H6 107.870
C1 C2 H7 107.870 C1 O4 H11 108.086
C2 C1 O4 110.228 C2 C1 O5 127.013
C2 C3 H8 110.676 C2 C3 H9 110.352
C2 C3 H10 110.352 C3 C2 H6 111.690
C3 C2 H7 111.690 O4 C1 O5 122.759
H6 C2 H7 106.519 H8 C3 H9 108.887
H8 C3 H10 108.887 H9 C3 H10 107.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.635      
2 C -0.485      
3 C -0.546      
4 O -0.556      
5 O -0.479      
6 H 0.234      
7 H 0.234      
8 H 0.189      
9 H 0.207      
10 H 0.207      
11 H 0.359      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.248 -0.086 0.000 1.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.751 -0.461 0.000
y -0.461 -24.611 0.000
z 0.000 0.000 -29.105
Traceless
 xyz
x -7.893 -0.461 0.000
y -0.461 7.317 0.000
z 0.000 0.000 0.576
Polar
3z2-r21.152
x2-y2-10.140
xy-0.461
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.362 -0.126 0.000
y -0.126 6.012 0.000
z 0.000 0.000 3.620


<r2> (average value of r2) Å2
<r2> 124.712
(<r2>)1/2 11.167